$OpenBSD: patch-tests_run_sh,v 1.1 2015/12/21 18:32:26 jasper Exp $

Drop gnu-ism and use the closest equivalent.

--- tests/run.sh.orig	Fri Dec 11 22:59:25 2015
+++ tests/run.sh	Mon Dec 21 19:28:07 2015
@@ -36,7 +36,7 @@ echo "When a test fails, please remove the $tmpdir dir
 # will attempt to write precompiled *.pyc sources.  For efficiency,
 # we share these temporary files among tests.
 mkdir $tmpdir
-cp -a "$SOURCE_DIR/src" $tmpdir/rubber
+cp -R "$SOURCE_DIR/src" $tmpdir/rubber
 sed "s%@version@%unreleased%;s%@moddir@%$SOURCE_DIR/data%" \
     $tmpdir/rubber/version.py.in > $tmpdir/rubber/version.py
 for exe in rubber rubber-info rubber-pipe; do
